We Hear You!After many requests G&G Now offers an upgrade to our rebuilt pump program. We now offer the optional upgrade of a single piece 316 stainless steel manifold plate installed on our rebuilt D10 pump. We recommend the D-10SS in tight spaces that require shorter length of pump. The rebuilt D-10SS pump includes the following - new poly valve plate, new 316 stainless steel manifold plate, new diaphragms, new valves as needed, rebuilt pistons with springs, and new seals. All pumps are performance tested after rebuild with a 1-yr warranty covering defects in materials or workmanship. Our poly valve plates are covered by a 2-yr warranty. Pumps are shipped ready to install; complete with banjo fitting and hose barb. DOES NOT INCLUDE PULLEY. Since most D10 core returns are received without the pulley, pulley must be purchased separately. Retain your existing pulley if possible. To order D10 Pulley click here Price does not include "core charge" of $300, to be credited after return and inspection of pump core. Please note that the core must be emptied of oil and fluid, be intact and include valves and valve bodies. Free shipping is provided for core return. A UPS return shipping label is included with each G&G pump. After a failed pump is removed, drain all oil and fluid from the pump. Place the old pump in the plastic bag provided and seal. Place in the re-usable shipping box, afix theUPS tag and send back to G&G for core credit. This is why G&G offers the best solution for longer pump life and lower maintenance cost. This photograph shows what liquid fertilizer does to the inside of a pump with brass plates in a short period of time. G&G's nylon plate design eliminates pump failure due to corrosion of the valve and manifold plates. Click here to see our video regarding standard H25 pump inspections prior to rebuild. Click here to see our video on how to install our Custom G&G Pump Plates. ****WARRANTY NOTICE**** Pumps often fail due to debris in unclean tanks or filters being removed. This creates punctures in diaghrams (see photo below). Our warranty will not cover punctured diaghrams from tank debris. This will void your warranty. Also, any pumps returned for warranty must not be disassembled prior to shipment. In order for G&G to properly inspect and credit for any warranty in regard to parts and labor, original pump must shipped (with oil removed). Call when ready for pick up and we will send a carrier.