Home
Company Profile
Standard Industrial Filter Cartridges
Giant Industrial Filter Cartridges
Industrial Housings
Parts & Accesories
Drinking Water Filters
Custom Pleating & Cartridges
Literature
Career Opportunities
Contact Keystone
Site Map
Stainless Steel Filter Housings

Single Tube
Keystone’s versatile and rugged stainless steel filter housings are useful for a broad range of applications. Their features include:

  • Cast bronze nickel-plated heads with nickel-plated “T” handle cap nut. Shell is a unibody style made of 304 stainless steel.
  • “T” handle top nut and petcock bottom drain eliminate the need for tools when changing cartridges.
  • Machined groove in underside of head retains Buna “N” gaskets for positive sealing.
  • 3/4" NPT connections are standard. 1" NPT is also available.
Model
Number
Rated
Capacity GPM (LPM)
Maximum Operating
Press.
PSI*
(BAR)
Dimensions (in.)
Number
of
Cartridges
Pipe Size
(NPT)
Shipping Weight
Height
Diameter
41
10 (38)
250 (17.5)
13.5
4.0
1
.75
7
42
5 (19)
250 (17.5)
8.625
4.0
1
.75
5
43
20 (76)
250 (17.5)
23.75
4.0
2
.75
10
44
30 (114)
250 (17.5)
33.5
4.0
3
.75
12
*To 275°F(136°C)
 

Multi-Tube

  • High quality 304 stainless steel construction with epoxy coating on outside of housing.
  • Belly-band clamp closure is included for easy cartridge change.
  • 1/2" drains are provided on clean and dirty sides.
  • Larger multiple cartridge housings with connection sizes up to 3" flange are also available.
  • Additional exterior finishes are available; optional electro polished stainless steel is shown at right.
Model
Number

Rated
Capacity GPM (LPM)
Maximum Operating
Press. PSI* (KCSH)
Dimensions (in.)
Number
of
Cartridges
Pipe Size
(NPT)
Shipping Weight
Height
Diameter
414
28 (106)
150 (10.5)
19.25
10.0
(4) 10"
2.0
20
434
56 (212)
150 (10.5)
29.0
10.0
(4) 20"
2.0
30
444
84 (318)
150 (10.5)
38.75
10.0
(4) 30"
2.0
40
4312
168 (636)
150 (10.5)
29.0
17.0
(12) 20"
3.0
125
4412 252 (954) 150 (10.5) 38.75 17.0 (12) 30" 3.0 140
4512 336 (1272) 150 (10.5) 49.0 17.0 (12)40" 3.0 160
*To 300° F (150°C)
Above rated flow capacities based on sediment removal with a 10 micron pleated filter cartridge
Standard housing gasket is Buna “N”; other materials on request.
 
 
Keystone Filter Division
2385 North Penn Road
Hatfield, PA 19440
Toll Free: 1-800-822-1963
Fax: 215-997-1839
E-mail: filters@keystonefilter.com		 © 2007 Keystone Filter Division