Three-Stage Filters | McMaster-Carr

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For Removing

Inlet Pipe Size

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Component

Maximum Flow Rate @ Pressure

Maximum Pressure

Drain Type

Removes Oil Content Down To

Pipe Size

Manufacturer Series

Housing Material

RoHS

Compliant with Exemptions

Filter Service Indicator Included

Bowl Material

Bowl Type

Opaque with Sight Glass

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

Overall Width

Height

Width

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Overall Height

28 Products

About Air Preparation

Customize your air preparation system with dryers, filters, and other purifying parts.

Compressed Air Filters for Oil, Particle, and Bacteria Removal

Produce clean air for instrumentation and other applications, such as food or medical device manufacturing. These multi-stage filters remove moisture, oil, and small particles—including bacteria—from compressed air. Because they use multiple filters in sequence, they reach high purity levels while avoiding clogs.

Filters with clear bowls allow you to see inside to monitor their contents.

Aluminum bowls are stronger than plastic bowls and won’t crack or shatter if dropped.

Filters

Clear Bowl

Opaque Bowl with Sight Glass

Filters
Pipe Size						Overall					Replacement First-Stage Filter Elements		Replacement Second-Stage Filter Elements		Replacement Third-Stage Filter Elements		Replacement Fourth-Stage Filter Elements
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Removes Particle Size Down To, microns	Removes Oil Content Down To, ppm	Wd.	Ht.	Includes		Each		Each		Each		Each		Each
NPT Female Inlet and Outlet
Nylon Plastic Bowl—Clear with Manual Drain
3/8	3/8	14 scfm @ 100 psi	150	0.01	0.003	9"	7"	Mounting Bracket	1309K111	0000000	1309K113	000000	1309K115	000000	1309K117	0000000	1309K119	0000000
1/2	1/2	28 scfm @ 100 psi	150	0.01	0.003	11 1/2"	8"	Mounting Bracket	1309K112	00000000	1309K114	00000	1309K116	000000	1309K118	000000	1309K121	000000
Aluminum Bowl—Opaque with Sight Glass and Automatic Drain
1/4	1/4	25 scfm @ 100 psi	250	0.01	0.008	10"	8 1/2"	__	1309K12	00000000	1309K21	00000	1309K22	00000	1309K23	00000	______	00
3/8	3/8	25 scfm @ 100 psi	250	0.01	0.008	10"	8 1/2"	__	1309K17	00000000	1309K21	00000	1309K22	00000	1309K23	00000	______	00
1/2	1/2	63 scfm @ 100 psi	250	0.01	0.008	10"	8 1/2"	__	1309K13	00000000	1309K31	000000	1309K32	000000	1309K33	000000	______	00
3/4	3/4	70 scfm @ 100 psi	250	0.01	0.008	13 1/2"	13"	__	1309K14	00000000	1309K41	000000	1309K42	000000	1309K43	000000	______	00
1	1	94 scfm @ 100 psi	250	0.01	0.008	13 1/2"	13"	__	1309K18	00000000	1309K41	000000	1309K42	000000	1309K43	000000	______	00

Replacement Sight Glasses for Aluminum Bowl Filters

	Mounting Holes
Material	No. of	Dia.	Mounting Fasteners Included		Each
Polycarbonate Plastic	2	3/16"	No	1309K513	000000

Replacement Automatic Drain Kits for Aluminum Bowl Filters

Outlet
Pipe Size	Thread Type	Gender	Material		Each
1/8	NPT	Female	Aluminum	1309K512	0000000

Mounting Brackets for Aluminum Bowl Filters

					Mounting Hole			Mounting Slot
For Inlet Pipe Size	Ht.	Wd.	Dp.	Material	No. of	Dia.	Ctr.-to-Ctr.	No. of	Lg.	Wd.	Mounting Fasteners Included		Each
1/4, 3/8, 1/2	2"	3"	3 1/2"	Zinc-Plated Steel	2	0.28"	2"	4	1"	0.3"	No	1309K511	0000000
3/4, 1	2 1/2"	3 3/4"	4 1/8"	Zinc-Plated Steel	2	1/4"	2.5"	4	1 1/16"	5/16"	No	1309K514	000000