Resource Conservation Technologies has chosen RA Kaplan Inc. and Sales Engineers Inc. as its newest manufacturer representatives.

The companies will carry the AquaGuard, Goliath and Titan lines of HVAC products.

RA Kaplan of Fort Wayne, Ind., will represent Resource Conservation Technologies in Illinois, Indiana, Ohio and Michigan.

Sales Engineers of Eden Prairie, Minn., has been selected to represent Minnesota, North Dakota, South Dakota and Wisconsin.