Established in 1973, Keystone Sales & Associates (KSA) is the premier manufacturers’ representative for plumbing, heating, ventilation and air conditioning (PHVAC) products in the Mid-Atlantic region. Headquartered in Pottstown, Pennsylvania, the company is experiencing rapid growth and expansion by offering a large selection of related products from a single source. As a value-added supplier, KSA provides distributors and contractors with customer support and hands-on technical training through its professional development arm, Keystone University.

Manufacture's Represented:
- AquaRex
- Arzel Zoning
- Bock
- Bosch
- Boyertown Furnace Company
- Buderus
- Bradley
- Calefactio
- Carlin
- Crete-Heat
- Dahl
- Fantech
- Haydon
- Hydrolevel Company
- Keltech
- Kraus
- Nantucket Sinks
- Noble Company
- Perfect Aire
- Rehau
- Wilo

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Keystone Sales & Associates

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