Profile: AJ Holmes Pump Co., Ltd. is a supplier of a range of pumps and pumping accessories. Our products include water pumps and chemical pumps. Our products are applicable for fuel and sewage applications. Our double diaphragm pumps range is manufactured to a high standard with a wide choice of materials including stainless steel with a 0.8 micron polished finish. Our DEPA range of double diaphragm pump is available as a powder pump, a high pressure pump, drum pumps, and four port pumps.