These bags are made of polyurethane coated nylon and are about half the weight and significantly stronger than bags made of PVC or PVC coated nylon. With a twist lock tube valve.This valve is attached to a piece of tubing. With this valve the bag can easily and quickly be inflated and deflated. 48L bags are slightly heavier than 43L bags but after a capsize there is a lot less water in the boat.
Optiparts buoyancy bag. Twist lock tube valve. Color Blue ￼48 L, size inflated 29 cm x 92 cm, content : 48L ￼size deflated 44 cm x 98 cm, radius 5 cm