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Here are the weight ratings for the SumoSprings that fit your 2017 Coachmen Leprechaun 319MB just so we can compare them next to each other:
SumoSprings # SSR-130-54 - Rated for 2,800 lbs
SumoSprings # SSR-106-47-1 - Rated for 5,000 lbs
SumoSprings # SSR-106-54-1 - Rated for 7,000 lbs
For your application it sounds like you're wanting to combine the 2.8K and 5K capacities to get the most help for your 10K axles. While I do see where you're going with this, I... view full answer...
Of the two options the MB Sturgis Sturgi-Stay T-Fitting for POL Valve part # 103537-MBS has two of the 250 quick disconnects which you will find on a ton of RV accessories. The Camco Brass Propane Tee w/ 4 Ports part # CAM59113 has a 1"-20 Male throwaway cylinder thread lets you attach a hose and a 1/4" Inverted flare for connecting a propane line.
There is no difference in quality between the two. One is designed for traditional type fittings the other for quick disconnects like the MB... view full answer...