- Automatically fills closed loop system when pressure drops
- Bronze construction
- Adjustable 10 to 25 psi
- Built-in check valve
- Fast Fill Rate
- 3/4" NPT female connections with union
NEW! Local Delivery within 25 miles of our store’s location. See rates at checkout.
We now offer online ordering for store pick-up! Place your order before stopping in and we'll have it ready for you.
Please read our Returns & Refunds policy at the bottom of the page