Johnson Pump 09-824P-9 F4 Impeller (Nitrile) - 09-824P-9 Flush Kits a vented loop must be

a vented loop must be installed on the discharge plumbing to prevent siphoning

high performance macerating toilet with design features not found in competing units

use silicone sealant on hull or deck surface

and direction

this product offers a seamless connection solution

Johnson Pump 09-824P-9 F4 Impeller (Nitrile) - 09-824P-9 Flush Kits a vented loop must beImpeller Pump: F4 Material: Nitrile (oil resistant) Outer Diameter: 2. 00" Inner Diameter: 0. 31" Flat Width: 0. 87" A worn or damaged impeller can cause system failure or engine breakdown. SPX's Johnson Pump brand impellers are developed and manufactured for maximum flow and long life. With a genuine spare impeller you can also be sure that you are getting the quality required by engine manufacturers and professionals.