Heating Resideo Boiler Trim | Nk300S Boiler Trim Kit W/ Check Valve, 1″ Press Air Eliminator, Press Boiler Feed & 4.4 Gal. Expansion Tank

Rather Than Taking The Time To Locate And Purchase The Pieces Separately, The Boiler Trim Kit Gives You All The Accessories Needed For A Boiler Installation. Each Kit Includes An Expansion Tank, A Boiler Feed Combination Valve, A Supervent Air Eliminator Or An Air Purger/Vent, And Check Valves. It’S A Complete, Time-Saving Solution In One Handy Box — Just Add Water.

Product Features

• Expansion Tank: Welded, Not Clamped, For Longer, Leak-Proof Life.
• Check Valves: Allows Replacement Of Expansion Tank And/Or Air Ventwithout Draining The Heating System.
• Supervent Air Eliminator Or Air Purger: Optimal Air Removal From Hydronic Systems.
• Boiler Fill Valve (Nk300S Shown): Double Check Backflow Preventer/Boiler Feed Valvecombo (Nk300S) Or Dialset Boiler Fill Valve And Dual Check Atmospheric Backflow Preventer (Fm911).

• Size: Supervent 1″, Tank 1/2″
• Connection Type: Tank: Male Npt, Supervent: Propress
• Height: 15-1/2″
• Volume: 4.4 Gal. (16.7 L)
• Weight: 16 Lb (7.3 Kg)