Balboa Water Group
Balboa Water Group Silicone Heater Gasket O-Ring | 21619
Balboa Water Group Silicone Heater Gasket O-Ring | 21619
Free ground shipping once your order reaches $99. Under $99, shipping is a flat $9.99.
In-stock orders usually leave in 1 to 2 business days, and faster delivery options appear at checkout.
Manuals, spec sheets and warranty for Balboa Water Group


Balboa silicone heater gasket O-ring
Reseal a heater union with this Balboa silicone heater gasket, part 21619.
It measures 2-1/8 inch inside diameter by 2-7/8 inch outside diameter and is made of silicone. Measure your old gasket before you order. Questions? Call 631-678-6506.
How to choose and fit the Silicone Heater Gasket O-Ring, 2-1/8 Inch ID x 2-7/8 Inch OD
Pull your old gasket and measure its inside and outside diameter.
Confirm 2-1/8 inches inside and 2-7/8 inches outside.
Seat the new gasket flat in the union and hand tighten. Call 631-678-6506 if the size differs.
Works on
Silicone Heater Gasket O-Ring, 2-1/8 Inch ID x 2-7/8 Inch OD questions and answers
What size is it?
It is 2-1/8 inch ID by 2-7/8 inch OD.
What is it made of?
It is a silicone gasket.
Is it in stock?
Stock changes often. If it shows as unavailable, call 631-678-6506 and we will check.
Will it fit my spa?
Confirm the part number and size against your current part, or call 631-678-6506 and we will help you check before you order.
