.br{display:block;margin-bottom:5px;}

Replacement Filter Pack for American Plumber WRO-4500 Reverse Osmosis System

• All Filters are Made in the USA
• NSF Certified

Includes

• (1) 5 Micron Pre-Filter (555021-52)
• (1) Carbon Block Pre-Filter (555021-52)
• (1) 1/4″ NPT In-Line GAC Post-Filter (255521-51)
• (1) Silicone Packet

Membrane Sold Separately

It is recommended that filters be changed at 6 or 12 month intervals, depending upon water quality.