John Guest - Acetal Bulkhead Union Quick Connect Fitting - Grey Tube Connection (OD):1/2" OD 5-inch Big Blue filter housings

5-inch Big Blue filter housings from Pentek

✓ 1/4" Quick Connect Fittings ✓ Built-in Check Valve ✓ Residential RO Systems

000 ppm and requires system operating pressure of 600–800 psi to achieve rated permeate flow

For optimal performance

John Guest - Acetal Bulkhead Union Quick Connect Fitting - Grey Tube Connection (OD):1/2" OD 5-inch Big Blue filter housingsJohn Guest Acetal Bulkhead Union Quick Connect Fitting Push fit bulkhead union for passing tubing through walls, tanks, and panels Acetal Copolymer Push to Connect UK Manufactured Food Grade The John Guest acetal bulkhead union creates a leak proof connection through barriers using the company's grip and seal collet system. Designed for potable water, food contact, CO2, pneumatics, and vacuum applications where tubing must pass through a structure.