Add 5.3 US Gal (20 L) of extra storage to your existing 13.5 US Gal (51 L) cooler. Fully insulated and easy to install. Ideal, e.g., for separating your lunch from your catch or a seperate tackle box. Requires LinQ 13.5 US gal (51 L) Cooler (Double Latch) (269801151) for installation. Fits on all LinQ with 16'' Base