Waterway Square Spa Skimmer/Skim Filter [1.5" S x 2" Spigot] [Front Access] [Flow Control with Trim Plate] (510-1501) airswitches That makes the union design

That makes the union design especially practical for long-term system upkeep

Supports more consistent heater operation

Useful when the original fitting or eyeball is damaged

Designed specifically for Digital Duplex LCD panel layouts

Waterway Square Spa Skimmer/Skim Filter [1.5" S x 2" Spigot] [Front Access] [Flow Control with Trim Plate] (510-1501) airswitches That makes the union designThe Waterway 510 1501 square spa skimmer and skim filter is designed for compatible applications and features 1. 5 inch slip by 2 inch spigot plumbing, front access design, flow control, and a trim plate. A complete unit like this is useful because it combines skimming, filtration support, and flow management in one assembly. The added front access design and trim plate make this Waterway unit especially practical in installations where service