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The Waterway 660-3100 air control is designed for compatible 1/2 inch air control applications using a 1-5/16 inch hole size and a 1-11/16 inch face diameter
Filter air bleed assemblies support pressure management and easier service in larger clean-and-clear style filter housings
A feed hose helps deliver water pressure to a compatible pressure-side cleaner
The 2-5/8 inch hole size and slip-style connections help define the intended fit and make this part especially useful in repairs where preserving the original assembly geometry matters
Darlly 40281 FC-0197 4CH-950 PSG27.5P2 Spa/Pool Filter Cartridge mermade The Waterway 660-3100 air controlThe Darlly 40281 filter cartridge is built for compatible filtration systems that require 28 square feet of media with a 1 1 4 inch SAE bottom connection. With a 4 3 4 inch diameter and 11 3 8 inch length, this cartridge is a strong fit focused replacement for systems using a compact body and a more specialized bottom end configuration. SAE bottom connections are an important detail to get right during replacement, especially in smaller housings where
