As Bob implied, if you are trying to use a grill or stove that normally uses 1 lb propane bottles it will not work regardless of what hose you have as the quick connect propane is already regulated to operating pressure. Connecting that to the input of the grill's/stove's regulator gets you nada.
Plenty of discussions on this forum about this: might try the search feature.
There are adapters available on Amazon that allow you to replace the regulator on your grill/stove with a quick connect fitting that is made to connect to the low pressure connections on RVs. They may or may not work for your appliance.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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