Waterway Pump Union [2-1/2" Union x 2" Slip] (400-5990) harwil this air control box helps

this air control box helps support dependable function control

and extend the life of surrounding equipment

or no longer matches the rest of the drain assembly

A chlorinator lid is useful because it helps close and protect the feeder chamber while allowing access for tablet refills and routine maintenance

Waterway Pump Union [2-1/2" Union x 2" Slip] (400-5990) harwil this air control box helpsThe Waterway 400 5990 pump union is designed for compatible pump plumbing applications using a 2 1 2 inch union connection and a 2 inch slip outlet. This style is useful where the pump side must retain a larger union format while the downstream plumbing transitions into a smaller rigid line. That size change makes this Waterway union especially practical in retrofit and replacement work where the pump connection and the existing plumbing do not match