PS, PE storage cap. Easy-to-use ergonomic design. Can be used to store sterilised filtrate. Radiation-sterilised to save time and minimise contamination. Also handy as presterilised, single-use storage containers. 1½ turn threaded screw closure guarantees a leakproof seal and eliminates pH shift in receivers. Certified / sterile / graduated / leakproof. PS, PE storage cap. Easy-to-use ergonomic design. Can be used to store sterilised filtrate. Radiation-sterilised to save time and minimise contamination. Also handy as presterilised, single-use storage containers. 1½ turn threaded screw closure guarantees a leakproof seal and eliminates pH shift in receivers. Certified / sterile / graduated / leakproof.