Side Mount Filler Breathers are designed to be used where top surfaces are not readily available for locating a filler port. This unit easily mounts on vertical tank walls. These units filter the fluid as it is added and also lets the tank breathe while keeping out airborne particles. Standard Features: Zinc plated steel cap -- large capacity Twist to lock removable cap breathes and filters air Air vents are concealed allowing for outdoor application Fluted finger insertions for easy gripping 10 or 40 micron filtration available Safety chain prevents loss of cap Heavy duty Cork-Neoprene gaskets provide a positive seal between flanges Zinc plated flange -- bayonet type (SAE J829) 3inch 30 mesh stainless steel strainer Thread forming screws -- prevents particles from entering reservoir during installation by forming threads instead of cutting them Tough glass-reinforced Nylon housing Includes bolts, nuts, and nylon washers for mounting