Remove it and take it with you to Home Depot or Lowes and see if you can get a longer one. I believe the fittings on the ends are standard.
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"I can fix it, and if I can't fix it, I can fix it so no one can fix it!" Ed & Wendy 2009 Georgetown 378TS | 1998 Jeep Wrangler | 1998 Skeeter ZX202C
Nights camped in 2009: 53 | Nights camped in 2010: 55 www.nwjeepn.com
Take it to Home Depot, Lowes, ACE, etc so you can match the size.
But replacement length of bulk hose off reel, or buy same ID/Od Tygon clear tubing in whatever length you need.
Buy two 1" concentric slip couplers in pvc/plastic, copper/brass or stainless (think they are 3/8" OD)
Slip the couplers into the ends of the existing hose end the jumper & seal/tape joints if needed (may not be nessisary to seal with the internal couplers, since you should only be working about 40 PSI pressure).
I replaced mine with one from Lowes. It's a residential style one with massage head and longer hose. I havea seasonal trailer...so shutting of the flow on the hose isn't an issue. (I have no gray or black tanks) You can see pics in my gallery.
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Pete (Jolly Mon)
2018 Wildwood Grand Lodge 42 DLTS
-Seasonal Space, Northern MN.
-2017 Sylvan 8522 LZ LES/115 Merc/Sea Legs