Not sealed or gas tight. I've tried two different brands of 5 gallon marin gas tanks (swapped them to try different threads) and also tried the Rubbermaid 5 gallon marin can and another AutoZone universal can or Advanced Automotive can and they have not worked to be air or fuel tight. for four different brands. (One was lost and I have other gas canisters to use in my generator in the event of a power outage). Also, all of the other gas cartridges had yellow caps that screwed on very tightly. One of my canisters seems to fit snugly but is still leaking gas when I tilted it back and tightened a bit, ripped it off. If I only had one brand of 5 gallon gas cans I would realize that maybe the threads just don't match, but after testing on four different brands of gas cans they didn't work at all, except for the threads breaking off very easily. Poorly made and not recommended!
6FT HORUSDY Gas Siphon Pump With 1/2" Valve And Virgin Grade Tubing For Safe, Multi-Purpose Use (White)
22 Review
Jack Pad Adapter Anodized Black Replacement For B-M-W 135 335 535 E82 E88 E46 E90 E91 E92 E93 E38 E39 E60 E61 E63 E64 E65 E66 E70 E71 E89 X5 X6 X3 1M M3 M5 M6 F01 F02 F30 F10(1 Pcs)
21 Review
Portable Electric Vehicle Charger (40A, 240V, 25Ft Cable) - Level 2 EV Charging Station With NEMA 6-50P Plug-In For EVs By MUSTART
19 Review
OEMTOOLS 24397 2.5 Gallon Manual Fluid Extractor Pump For Oil And Transmissions, With Oversized Handle For Easier Use And Extraction
23 Review
Tool set Ombra OMT82S12, 82 pcs, brown
22 Review
Xiaomi Mi x Mijia Wiha Precision Screwdriver Set (DZN4000CN), 25 pcs
34 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review