LEADER evaporator - Leader in Maple Sugaring Industry since 1888

These units are made of lightweight, corrosion-resistant thermoplastic.
Connections: NPT female. 
Standard housings have a Buna-N O-ring and four  3/16" dia. mounting holes in the head for easy installation. They also have a pressure release valve to relieve internal pressure when changing cartridges. 100%-pure polypropylene housings are for semiconductor, pharmaceutical, and deionized water applications. They have a silicone O-ring.