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Original ‘A12’ (Black) Coil (15392). ‘B9’ (Red) Coil (15382). ‘C9’ (Green) Coil (15430). The Valve Tube on the B & C Valve is 1/4" Longer than the original Valves which are no longer manufactured. Therefore, the bottom of the Coil sets 1/4" higher off the Pump Manifold.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.