Max Water O Shape Ring Fits 20" x 4.5" & 10" x 4.5" Double O-Rings Filter Housing Type 1 with Brass Ports

2 Pcs Max Water BB "O" Shape ring for Big Blue water filter size 10 Inch & 20 Inch x4.5 Inch housing Head with Brass port (Double "O" ring) Fits Some standard 10 inch or 20 inch Big blue housings by US Filter. Please check your "O" Shape ring CS size before consider buying this item. This O Shape rings will not fit to our single O Shape rings filter housings model. Please make sure you are ordering the right spare "O" Shape rings. Graded Inside Diameter / ID = 5-5/8 inch Outside Diameter / OD = 5.75 inch CS / 0.170 inch

• Model: 105465C. Fits Some standard 10 or 20 Big blue housings from any RO water filter brand. Please check your "O" Shape ring CS size before considering buying this item. Compatible with: Housing type "1" shown in the image
• This o ring is for Big Blue Housing Heads with Brass ports.
• Product(s) are made from safe, non-toxic materials that have been tested.
• Please be sure to confirm the size/quantity of the product before purchase. If your housing type is compatible with Type TWO shown in the image, please search this ASIN B0DRDCV3WJ for the O-ring replacement.
• PACK QTY: 2 pcs
• NOTE: We no longer supply O-ring for PVC port filter housings. . that fits 20" x 4.5" and 10" x 4.5" double O-ring housings with 1" PVC ports. Please check with other suppliers for availability. O-ring size is: ID 5.58", CS 0.170", OD 5.75"