Sundstrom SR221 PRE-FILTER - Box of 80 Package:Box of 80 L50 - Refers to the

L50 - Refers to the external lid height = 500mm

loud crowds

Superb low-cost protection against liquid splashes and coarse particles before they reach the main filter

- High-strength TPU (PVC-free) tarp material for regular to intensive use

Sundstrom SR221 PRE-FILTER - Box of 80 Package:Box of 80 L50 - Refers to thePre filters save you money by keeping your Sundstrom filter cleaner for longer! Always put a clean pre filter onto your main filter daily, and you can be sure of longer main filter life. Superb low cost protection against liquid splashes and coarse particles before they reach the main filter. Use a pre filter at all times. Great effect at a tiny cost. It's the smartest thing you can do. Snap on design Catches coarse particles Prolongs main filter life