SIS Chromatography Tubing

SIS now offers a larger variety of tubing for your Chromatography and Laboratory needs. Please note that burst pressures, where listed, should be regarded as absolute limits. Your routine operating pressures should include a suitable safety margin based on your specific application and equipment.

Copper Tubing	Stainless Steel Tubing - Chromatography grade 316	PTFE Tubing	TEFZEL Tubing	Corner Forms for PEEK Tubing
PEEK Tubing	316 Stainless Steel Pre-cut Tubing	PFA Tubing	Viton Tubing
PEEK Spiral Tubing	FEP (Flouridated Ethylene-Propylene) Tubing	Nylon Tubing	Tubing Clips

Copper Tubing

Flexible 1/8" copper is a convenient, non-permeable means of supplying GC carrier gas, Helium for sparging HPLC reservoirs, detector gas supplies, etc. Bulk copper tubing should be solvent-cleaned before use to assure that it is free of contamination. Rinse the tubing with Methanol and Methylene Chloride, then connect it to a clean gas supply and heat the tubing to remove residual solvent.

Part No.	Description	ship wt.	Quantity In Stock	Price	Quantity to order
UOM=EA
CTB065	1/8in OD X 0.065in ID flexible copper tubing, 50 foot length	1	PART NUMBER OUTDATED. New number is 5174K1^(#)	---	---
CTB065C	Precleaned 1/8in OD X 0.065in ID flexible copper tubing, 50 foot length	1	0^(#)	$90.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

Stainless Steel Tubing - Chromatography grade 316

The most common material for most routine HPLC applications. Its high strength (burst pressure >8000 psi), general inertness and resistance to corrosion make it the standard material for HPLC plumbing. Stainless steel can corrode under extremes of pH, and it can bind proteins as well as contribute metal ions to mobile phases. These properties make stainless steel incompatible with the analysis of many biomolecules and the use of buffers with high ionic strength. Bulk stainless steel tubing from SIS is solvent-cleaned and baked prior to shipment.

Part No.	Description	ship wt.	Quantity In Stock	Price
UOM=Foot
SSTB010	1/16inOD X 0.010in ID chromatography grade 316 stainless steel tubing, price per foot	0.25	188	$3.00
SSTB020	1/16inOD X 0.020in ID chromatography grade 316 stainless steel tubing , price per foot	0.25	203	$3.00
SSTB030	1/16inOD X 0.030in ID chromatography grade 316 stainless steel tubing , price per foot	0.25	0^(#)	$3.00
SSTB040	1/16inOD X 0.040in ID chromatography grade 316 stainless steel tubing , price per foot	0.25	45	$3.50
SSTB082	1/8inOD X 0.082in ID chromatography grade 316 stainless steel tubing , price per foot	0.25	39	$4.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

316 Stainless Steel Pre-cut Tubing

These pieces are cut with an electronic discharge method which leaves the ends perfectly flat, open, and burr-free. Precut stainless tubing is passivated, cleaned and rinsed.

Part No.	Description	ship wt.	Quantity In Stock	Price
UOM=EA
SSPC1050	50 mm 1/16in OD X 0.010in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$3.45^(*A)
SSPC10100	100 mm 1/16in OD X 0.010in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$4.33^(*A)
SSPC10200	200 mm 1/16in OD X 0.010in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$4.95^(*A)
SSPC10300	300 mm 1/16in OD X 0.010in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$6.75^(*A)
SSPC2050	50 mm 1/16in OD X 0.020in ID pre-cut chromatography grade 316 stainless tubing	0.25	8	$4.40^(*A)
SSPC20100	100 mm 1/16in OD X 0.020in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$3.75^(*A)
SSPC20200	200 mm 1/16in OD X 0.020in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$5.75^(*A)
SSPC20300	300 mm 1/16in OD X 0.020in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$6.75^(*A)
SSPC3050	50 mm 1/16in OD X 0.030in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$4.50^(*A)
SSPC30100	100 mm 1/16in OD X 0.030in ID pre-cut chromatography grade 316 stainless tubing	0.25	0^(#)	$4.50^(*A)
SSPC30200	200 mm 1/16in OD X 0.030in ID pre-cut chromatography grade 316 stainless tubing	0.25	10	$5.00^(*A)
SSPC30300	300 mm 1/16in OD X 0.030in ID pre-cut chromatography grade 316 stainless tubing	0.25	9	$6.00^(*A)
(*_) Marked parts have bulk quantity discount pricing: Discount code 'A' -- 10 or more: 5% off; 50 or more: 10% off.
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

PEEK Tubing

Its strength and inertness make PEEK (Poly Ether Ether Ketone) the obvious substitute for stainless steel when biocompatibility is an issue. SIS offers two types of PEEK tubing: Solid color coded tubing, and natural tan tubing with a color coded stripe. The striped material is recommended for maximum chemical resistance and biocompatibility, as the dye used for the stripe never comes in contact with the fluid stream. PEEK is very chemically resistant, and can withstand halide salts and buffers of high ionic strength which can degrade stainless steel. PEEK does not contribute metal ions or provide protein binding sites the way stainless steel can. Certain organic solvents including Methylene Chloride, DMSO, and THF will cause PEEK to swell and will result in lower burst pressure. Concentrated nitric and sulfuric acids will attack the polymer, although 30% nitric acid may be used for passivating.

Part No.	OD (in)	ID (in)	Burst Pressure (psi)	Color	ship wt.	Quantity In Stock	Price	Quantity to order
PEEK Tubing, price per foot, UOM=Foot
PK005	1/16	0.005	5000	Red	0.25	68	$4.00^(*A)
PK007	1/16	0.007	5000	Yellow	0.25	76	$3.25^(*A)
PK010	1/16	0.010	5000	Blue	0.25	88	$2.80^(*A)
PK020	1/16	0.020	5000	Orange	0.25	23	$2.80^(*A)
PK030	1/16	0.030	3000	Green	0.25	135	$2.80^(*A)
PK062	1/8	0.062	4000	Natural	0.25	DISCONTINUED	---	---
PK080	1/8	0.080	3000	Natural	0.25	96	$6.00^(*A)
PKS005	1/16	0.005	5000	Red Striped	0.25	28	$3.50^(*A)
PKS007	1/16	0.007	5000	Yellow Striped	0.25	36	$2.80^(*A)
PKS010	1/16	0.010	5000	Blue Striped	0.25	0^(#)	$2.80^(*A)
PKS020	1/16	0.020	5000	Orange Striped	0.25	40	$2.80^(*A)
PKS030	1/16	0.030	3000	Green Striped	0.25	16	$2.80^(*A)
(*_) Marked parts have bulk quantity discount pricing: Discount code 'A' -- 10 or more: 5% off; 50 or more: 10% off.
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

PEEK Spiral Tubing

Available with solid or striped color codes, these coiled segments give added flexibility to segmented systems, and are easier to handle that long, straight pieces of PEEK tubing. Each coil comes complete with fingertight PEEK fittings and ferrules, and has 150 mm of straight tubing at each end for connections.

Part No.	expansion range	ID (in)	Burst Pressure (psi)	Color	ship wt.	Quantity In Stock	Price	Quantity to order
PEEK Spiral Tubing, OD (in)=1/16, UOM=EA
PKT105	310-330 mm	0.005	5000	solid red	0.25	DISCONTINUED	---	---
PKT107	310-330 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT110	310-330 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT120	310-330 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT130	310-330 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS107	310-330 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS110	310-330 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS120	310-330 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS130	310-330 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT207	320-420 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT210	320-420 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT220	320-420 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT230	320-420 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS207	320-420 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS210	320-420 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS220	320-420 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS230	320-420 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT307	335-500 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT310	335-500 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT320	335-500 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT330	335-500 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS307	335-500 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS310	335-500 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS320	335-500 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS330	335-500 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT407	350-600 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT410	350-600 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT420	350-600 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT430	350-600 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS407	350-600 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS410	350-600 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS420	350-600 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS430	350-600 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT507	400-700 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT510	400-700 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT520	400-700 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT530	400-700 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS507	400-700 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS510	400-700 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS520	400-700 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS530	400-700 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT607	450-900 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT610	450-900 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT620	450-900 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT630	450-900 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS607	450-900 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS610	450-900 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS620	450-900 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS630	450-900 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT707	470-1100 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT710	470-1100 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT720	470-1100 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT730	470-1100 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS707	470-1100 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS710	470-1100 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS720	470-1100 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS730	470-1100 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT807	525-1400 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT810	525-1400 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT820	525-1400 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT830	525-1400 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS807	525-1400 mm	0.007	5000	striped yellow	1	DISCONTINUED	---	---
PKTS810	525-1400 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS820	525-1400 mm	0.020	5000	striped orange	0.25	DISCONTINUED	---	---
PKTS830	525-1400 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
PKT907	550-1600 mm	0.007	5000	solid yellow	0.25	DISCONTINUED	---	---
PKT910	550-1600 mm	0.010	5000	solid blue	0.25	DISCONTINUED	---	---
PKT920	550-1600 mm	0.020	5000	solid orange	0.25	DISCONTINUED	---	---
PKT930	550-1600 mm	0.030	3000	solid green	0.25	DISCONTINUED	---	---
PKTS907	550-1600 mm	0.007	5000	striped yellow	0.25	DISCONTINUED	---	---
PKTS910	550-1600 mm	0.010	5000	striped blue	0.25	DISCONTINUED	---	---
PKTS920	550-1600 mm	0.020	5000	striped orange	0.25	1	$95.00
PKTS930	550-1600 mm	0.050	3000	striped green	0.25	DISCONTINUED	---	---
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

PTFE Tubing

A very chemically inert Fluorocarbon suitable for low-pressure applications. PTFE is a naturally translucent white material, however SIS also offers this tubing in black for light sensitive applications. PTFE is gas-permeable, and will result in diffusion of atmospheric gases into fluids carried inside the tubing.

Part No.	Description	ship wt.	Quantity In Stock	Price
PTFE tubing, UOM=Foot
PTFE010	1/16in OD X 0.010in ID, 1000 psi burst, priced per foot	1	10	$1.10^(*H)
PTFE010B	1/16in OD X 0.010in ID Black, 1000 psi burst, priced per foot	1	0^(#)	$2.75^(*H)
PTFE020	1/16in OD X 0.020in ID, 700 psi burst, priced per foot	1	34	$1.10^(*H)
PTFE020B	1/16in OD X 0.020in ID Black, 700 psi burst, priced per foot	1	3	$1.50^(*H)
PTFE040	1/16in OD X 0.040in ID, 350 psi burst, priced per foot	1	96	$1.10^(*H)
PTFE062	1/8in OD X 0.062in ID, 500 psi burst, priced per foot	1	21	$2.00^(*H)
(*_) Marked parts have bulk quantity discount pricing: Discount code 'H' -- 20 or more: 10% off; 50 or more: 15% off.
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

TEFZEL Tubing

A Fluorocarbon with a higher burst pressure than PTFE and excellent chemical resistance, especially to chloride salts. Tefzel may swell when used with organic solvents, and in that case operating pressures should be restricted to under 70 bar (1000 psi).

Part No.	Description	ship wt.	Quantity In Stock	Price
ETFE ( TEFZEL ) tubing, UOM=Foot
ETFE010	1/16in OD X 0.010in ID, 3000 psi burst, priced per foot	0.25	55	$2.25
ETFE020	1/16in OD X 0.020in ID, 2000 psi burst, priced per foot	0.25	9	$2.25
ETFE030	1/16in OD X 0.030in ID, 1500 psi burst, priced per foot	0.25	32	$2.25
ETFE040	1/16in OD X 0.040in ID, 1000 psi burst, priced per foot	0.25	18	$2.25
ETFE062	1/8in OD X 0.062in ID, 1500 psi burst, priced per foot	0.25	23	$2.70
Ordering information. International (non-US) prices available through your local dealer.

FEP (Flouridated Ethylene-Propylene) Tubing

This material has excellent resistance to buffers and mobile phases with higher ionic strength. FEP tubing is recommended for low pressure and ion chromatography applications.

Part No.	Description	ship wt.	Quantity In Stock	Price
FEP ( Flouridated Ethylene-Propylene) Tubing, UOM=Foot
FEP010	1/16in OD X 0.010in ID, 2000, priced per foot psi burst	0.25	0^(#)	$1.50
FEP020	1/16in OD X 0.020in ID, 1500, priced per foot psi burst	0.25	85	$1.50
FEP030	1/16in OD X 0.030in ID, 1000 psi burst, priced per foot	0.25	90	$1.50
FEP040	1/16in OD X 0.040in ID, 800 psi burst, priced per foot	0.25	0^(#)	$1.50
FEP062	1/8in OD X 0.062in ID, 1000 psi burst, priced per foot	0.25	10	$3.25
FEP171	1/4in OD X 0.171in ID, 500 psi burst, priced per foot	0.25	0^(#)	$4.90
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

PFA Tubing

Another very inert Fluorocarbon, this material has extra-low permeability. PFA should be used when diffusion through the tubing wall is an issue.

Part No.	Description	ship wt.	Quantity In Stock	Price
PFA Tubing, UOM=Foot
PFA020	1/16in OD X 0.020in ID, 1500 psi Burst, priced per foot	1	20	$2.25
PFA030	1/16in OD X 0.030in ID, 1000 psi Burst, priced per foot	1	24	$2.25
PFA062	1/8 in OD X 0.062 in ID, 1000 psi Burst, priced per foot	1	6	$3.25
Ordering information. International (non-US) prices available through your local dealer.

Nylon Tubing

An economical choice for air, nitrogen, water, and other non-critical gas and liquid service in the laboratory. Not recommended for Hydrogen service. Available in (opaque) white and black. Working temperature range -5 to 100°C.

Part No.	Description	ship wt.	Quantity In Stock	Price
Nylon tubing, UOM=EA
NY080	1/8 in OD X 0.080 in ID, 1500 psi burst, priced per foot	1	0^(#)	$21.00
NY080B	1/8 in OD X 0.080 in ID Black, 1500 psi burst, priced per foot	1	0^(#)	$21.00
NY093	1/8 in OD X 0.093 in ID, 800 psi burst, priced per foot	1	1	$20.00
NY093B	1/8 in OD X 0.093 in ID Black, 800 psi burst, priced per foot	1	1	$20.00
NY125	1/4in OD X 0.125inID, 2000 psi burst, priced per foot	1	0^(#)	$54.00
NY125B	1/4in OD X 0.125inID Black, 2000 psi burst, priced per foot	1	0^(#)	$54.00
NY170	1/4in OD X 0.170inID, 1200 psi burst, priced per foot	1	1	$48.00
NY170B	1/4in OD X 0.170inID Black, 1200 psi burst, priced per foot	1	0^(#)	$48.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

Viton Tubing

A Fluoropolymer with good chemical and high temperature resistance. Usable at temperatures from -20 to 250°C.

Part No.	Description	ship wt.	Quantity In Stock	Price
Viton Tubing, UOM=Foot
VT250	1/4 in OD X 1/8 in ID, priced per foot	1	0^(#)	$6.50
VT375	3/8in OD X 1/4in ID , priced per foot	1	0^(#)	$10.25
VT500	1/2in OD X 3/8in ID , priced per foot	1	0^(#)	$15.25
VT625	5/8in OD X 1/2in ID , priced per foot	1	0^(#)	$19.25
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

Tubing Clips

This convenient piece makes sure 1/8" and 1/16" tubing stays put in bottles or beakers.

Part No.	Description	UOM	ship wt.	Quantity In Stock	Price	Quantity to order
E840	Tubing clip for 1/8in and 1/16in tubing	PK	0.25	9	$10.00
Ordering information. International (non-US) prices available through your local dealer.

Corner Forms for PEEK Tubing

Form perfect 90° or 180° turns in PEEK tubing easily with these accessories designed to bend the material at a radius that will not compromise its strength.

Part No.	Description	ship wt.	Quantity In Stock	Price
UOM=PK
E850	90u Corner form for 1/8 in and 1/16 in tubing	0.25	0^(#)	$8.00
E855	180u Corner form for 1/8 in and 1/16 in tubing	0.25	0^(#)	$8.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
Ordering information. International (non-US) prices available through your local dealer.

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SIS Catalog Cross Reference
Page #	Part Numbers
E20	PK005, PTFE010
	CTB065, PK062, PKT105, PKT107, PKT110, PKT120, PKT130, PKT207, PKT210, PKT220, PKT230, PKT307, PKT310, PKT320, PKT330, PKT407, PKT410, PKT420, PKT430, PKT507, PKT510, PKT520, PKT530, PKT607, PKT610, PKT620, PKT630, PKT707, PKT710, PKT720, PKT730, PKT807, PKT810, PKT820, PKT830, PKT907, PKT910, PKT920, PKT930, PKTS107, PKTS110, PKTS120, PKTS130, PKTS207, PKTS210, PKTS220, PKTS230, PKTS307, PKTS310, PKTS320, PKTS330, PKTS407, PKTS410, PKTS420, PKTS430, PKTS507, PKTS510, PKTS520, PKTS530, PKTS607, PKTS610, PKTS620, PKTS630, PKTS707, PKTS710, PKTS720, PKTS730, PKTS807, PKTS810, PKTS820, PKTS830, PKTS907, PKTS910, PKTS920, PKTS930
D42	CTB065C
D43	PK005, PK007, PK010, PK020, PK030, PK080, VT250, VT375, VT500, VT625
E17	CTB065C, SSPC10100, SSPC10200, SSPC10300, SSPC1050, SSPC20100, SSPC20200, SSPC20300, SSPC2050, SSPC30100, SSPC30200, SSPC30300, SSPC3050, SSTB010, SSTB020, SSTB030, SSTB040, SSTB082
E18	PK005, PK007, PK010, PK020, PK030, PK080, PKS005, PKS007, PKS010, PKS020, PKS030
E19	E840, E850, E855, ETFE010, ETFE020, ETFE030, ETFE040, ETFE062, FEP010, FEP020, FEP030, FEP040, FEP062, FEP171, NY080, NY080B, NY093, NY093B, NY125, NY125B, NY170, NY170B, PFA020, PFA030, PFA062, PTFE010, PTFE010B, PTFE020, PTFE020B, PTFE040, PTFE062, VT250, VT375, VT500, VT625