Small Concrete Light Niche - 3/4 Inch Rear Hub - Stainless Steel monitors_pH/ORP It is used for Calcium

It is used for Calcium Hardness testing in Taylor Kits

This is a PVC Union with slip x slip connections measuring 1-1/4 Inch

endurance and strength

It has a mounted 50 person First Aid Kit and includes a 24 inch Orange USCG approved life ring with 60 foot heaving line

These floats are in matching blue and white

Small Concrete Light Niche - 3/4 Inch Rear Hub - Stainless Steel monitors_pH/ORP It is used for CalciumThis is a Pentair 78244200 Small Stainless Steel Light Niche for Concrete Gunite Installation in pools and spas. It has a 3 4 inch rear hub. This niche is used with SpaBrite and AquaLight Spa Lights. The small light niches measure 6. 5 inch total face diameter, 4. 94 inches for body diameter and 5. 55 inches in length.