Pentair Union 1-1/2" Kit || 474974 2.5" collar Compatibility: Designed specifically for 4"

Compatibility: Designed specifically for 4" BYV valves

Install the gas orifice properly to ensure the correct gas flow and avoid potential issues with combustion

Easy to install — minimal tools required

✅ UPC: 788379805876

Pentair Union 1-1/2" Kit || 474974 2.5" collar Compatibility: Designed specifically for 4"Pentair Union 1 1 2" Kit 474974 Pentair Union 1 1 2" Kit 474974 SKU: 474974 UPC: 788379865290 Enhance the performance of your Pentair pool heater with the Pentair Union 1 1 2" Kit (Model 474974). This high quality, durable part is designed to provide secure, leak free connections for your pool heater, ensuring optimal water flow and pressure. Easy to install and built to last, the Union 1 1 2" Kit is an essential component to maintain the efficiency