Which Marine Fuel Bladder Size Do You Need?
Find the right auxiliary fuel bladder for your vessel!
💡 Pro Tip: Allow 10–15% additional space to accommodate bladder expansion and hose routing during installation.
Bladder Dimension Chart & Size Guide
Compare dimensions and weights of all Techno Tanks marine fuel bladders.
Toggle between imperial and metric measurements for your convenience.
| Capacity | Typical Use | Box Dimensions | Filled Dimensions | Weight |
|---|---|---|---|---|
| 30 Gallons | Small center console / short range extension | 20 × 16 × 7.5 in | 33.5 × 22 × 12.5 in | 17.5 lbs |
| 50 Gallons | Offshore fishing / compact deck footprint | 25.5 × 20.5 × 10 in | 48 × 19 × 17 in | 23.5 lbs |
| 60 Gallons | Small offshore boats / added day range | 20 × 16 × 7.5 in | 42 × 28.5 × 16 in | 21 lbs |
| 80 Gallons | Offshore fishing / mid-size cockpit layout | 25.5 × 20.5 × 10 in | 42.5 × 34 × 18 in | 24.5 lbs |
| 100 Gallons | Longer offshore runs / larger deck capacity | 25.5 × 20.5 × 10 in | 53 × 37 × 15 in | 27 lbs |
| 150 Gallons | Extended offshore runs / sportfish support | 25.5 × 20.5 × 10 in | 63 × 44.5 × 17.5 in | 34 lbs |
| 200 Gallons | Long range boating / expedition support | 25.5 × 20.5 × 10 in | 66 × 61 × 15 in | 39.5 lbs |
| 250 Gallons | Large cockpit layouts / extended range | 25.5 × 20.5 × 10 in | 68 × 56 × 19.7 in | 40 lbs |
| 300 Gallons | Maximum range extension / large vessels | 25.5 × 20.5 × 10 in | 68 × 63 × 19.5 in | 41.5 lbs |
*Values are approximate (Length × Width × Height). Height measured to flange; allow approximately 2 in for fuel cap.
Fuel Weight Calculator
Toggle between gasoline and diesel to estimate the approximate fuel weight added to the boat for each bladder size.
| Capacity | Fuel Weight Added |
|---|---|
| 30 Gallons | |
| 50 Gallons | |
| 60 Gallons | |
| 80 Gallons | |
| 100 Gallons | |
| 150 Gallons | |
| 200 Gallons | |
| 250 Gallons | |
| 300 Gallons |
30 Gallons
Fuel Weight Added
50 Gallons
Fuel Weight Added
60 Gallons
Fuel Weight Added
80 Gallons
Fuel Weight Added
100 Gallons
Fuel Weight Added
150 Gallons
Fuel Weight Added
200 Gallons
Fuel Weight Added
250 Gallons
Fuel Weight Added
300 Gallons
Fuel Weight Added
*Approximate fuel weight only. Calculated using standard reference densities of 6.1 lb/gal for gasoline and 7.08 lb/gal for diesel. Does not include bladder, fittings, hose, or pump weight.