Nipple Retaining Ring

Secures nut to nipple. C-Clip available to hold nut in position & protect nipple seating area
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Inlet Nipple Filter

Porous metal filters for regulator CGA-320 inlet nipples.

1/4" x 1/8"MPT Brass Reducing Hex Nipple

This part goes between the regulator and the solenoid. The 1/4 side is threaded into the regulator's 1/4 npt and the 1/8 side goes into the solenoid manifold.

10-32 Ports Check Valve

10-32 Ports Industrial Grade Brass Check Valve. The best and most reliable aquarium check valve to prevent water from back flowing into your co2 equipment. Can be used inline by screwing hose barbs(sold separately) on both ends. Very low 1/3 psi Cracking Pressure.