Watts ET-RA-500 - Part of the ET-RA Series ADS Kostil Polymer window

Kostil Polymer window

ZN328-6-AR

This type of Fabric resists ultraviolet deterioration

Body made from fiber reinforced polymer (FRP) with 0% water absorption for chemical and corrosion resistance

When buried

Watts ET-RA-500 - Part of the ET-RA Series ADS Kostil Polymer windowThis 132 gallon pressurized expansion tank is designed to absorb the expansion forces and control the pressure in heating and cooling systems. It is an ASME Section VIII removable bladder type precharged expansion tank. The excess water is contained in the heavy duty butyl bladder preventing tank corrosion and waterlogging problems. Maximum pressure is 125 psi (8. 5 bar). Features ASME Section VIII code construction Heavy duty removable butyl bladder