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Standard polypro-SAN filter housings offer the following:
  • White talc reinforced polypropylene head with blue talc reinforced or clear styrene acrylonitrile (SAN) bowl.
  • Standard 3/4" NPT connections.
  • Securely retained Buna “N” O-Ring to ensure effective sealing by positive tangential contact; eliminates accidental misplacement; provides longer life.
  • Positive head to bowl “stop” to prevent bowl overtightening.
  • Available from stock with or without pressure relief vent button.
  • Custom colors available by special order.
  • Mounting bosses in head for available bracket.
  • Accepts industry standard cartridge size: 23/4" O.D. x 1" I.D. x 93/4" (full length), 47/8" (half size) and 20" (double length).
  • Full testing to industry standards of the Water Quality Association for burst pressure, water tightness and fatigue resistance.
21N
Unit of Measure
Items 21N
21N
Standard Filter Housing - Full Size/Clear Bowl w/ Pressure Relief Button
List Price $131.00
21N
22N
Standard Filter Housing - Half Size/Clear Bowl w/ Pressure Relief Button
List Price $129.00
23NDW
23N
Standard Filter Housing - Double Length/Clear Bowl w/ Pressure Relief Button
List Price $181.00
Type N/A Standard Filter Housing
Keystone Part # N/A 051105 N/A S51107 N/A 051765
Size N/A Full Size (Fits Standard 9-3/4" Cartridges) N/A Half Size (Fits Standard 4-7/8" Cartridges) N/A Double Length (Fits Standard 20" Cartridges)
Material N/A White Talc Reinforced Polypro Head / Clear Styrene Acrylonitrile (SAN) Bowl
Housing Style N/A With Pressure Relief Button
Height N/A 14.12" N/A 9.25" N/A 24.44"
O.D. N/A 5.5"
Max. Operating Pressure - at 70 degrees F (21 degrees C) N/A 150 psi (10.5 kcsh)
Max. Operating Temperature N/A 125 degrees F (52 degrees C)
Pipe Size N/A 3/4" NPT (BSP Available)
Number of Cartridges Housing Holds N/A 1
Shipping Weight (each) N/A 3.3 lbs N/A 2.6 lbs N/A 4.5 lbs
Certification N/A NSF Approved N/A N/A NSF Approved