Potter Electric Signal Co. has announced the VSR-SFG and VSR-SFT waterflow alarm switches, featuring a union. These special union fittings allow for installation adjacent to finished drywall and other confined spaces. The VSR-SFG has a 1" glue-in fitting for CPVC pipe sizes 1"-2", and paddles are available for all CPVC tee manufacturers. The VSR-SFT has a 1" NPT screw-in fitting and also fits pipe sizes 1"-2". The VSR-SFT is available with 12 paddles for all types of tees. In addition, both the SFG and SFT offer NEMA 4 solid enclosures, 0-90 second pneumatic retard, 175 psi pressure rating and a five-year warranty. They are UL, cUL, CSFM, NYMEA and CE listed and approved. Potter Electric Signal Co. Circle 20.