What is the Difference Between Valterra EZ Valve Electric Waste Valves # E85-8 and # E84-8

Question:

HP 1- I D LIKE TO KNOW WHATS THE DEFRENCE BETWEEN Item # E85-8 AND Item # E84-8. 2- CAN I REPLACE ONE OF THESE ITEMS WITH MY SEWORGE WHICH I ATTACHED PICS I NEED THE RIGHT ANSWER PLEASE ........BECAUSE MY THE BLACK WATER PIPE IS BIGGER THAN THE GRAY AND YOUR ITEMS ARE THE SAME SIZE BLACK AND GRAY THANKS AND BESTREGARDS

asked by: ABDULLA

Expert Reply:

The difference between the Valterra EZ Valve Electric Waste Valves # E85-8 and # E84-8 is the design of the center output tube. On # E85-8 it's a straight, regular hub. On # E84-8 the center tube has bayonet fittings. Based on your pictures you would need # E84-8. However, the input size of either hub is 3 inches so your smaller tubes would not fit without adapting to the tubing size you have up to a 3 inch mating tube to fit the E84-8.

It looks like the smaller tubes are 1-1/2 inch (measure to be sure) so an adapter such as # T1041-1 would be needed. If any of the tubes are different than 1-1/2 or 3 inch let me know.