Yes - I did use the original Thetford valves......
That must be the difference in price........they were really easy to
replace - that was once Charle Burke let me take my sawsall to the original
plumbing - there probably is a way to remove the valves without cutting
them out - but I couldn't figure it out - like the old saying goes - if it
doesn't go easy - get a bigger hammer ..... or .... aa ...... saw. hee hee
Ken J.