Navien GXXX002140 3 4 in. Plumb Easy Isolation 3 Valve Kit for NPE A NPE A2 A Bass Pro Invoice Amount 43.99 Custom Fit and Snow Protection: 3 bolt patterns Custom Fit and Snow Protection: Adjustable snow collar with Easy Grab Lace Lock keeps snow out while providing a tailored fit for maximum comfort Experience versatile comfort and traction with Merrell Morphlite Trail Running Shoes—add them to your collection today 3 valve set (1) hot water full port ball valve with red handle and purge drain port (1) recirculation full port ball valve with orange handle and purge drain port and (1) 150 psi pressure relief valve certified to ANSI Z21