Leisure Time Calcium Booster | Hardness Increaser Brand_Endless Pools 1 x DuraVent 58DVA-E90 90°

1 x DuraVent 58DVA-E90 90° Elbow

Big Green Egg’s all-natural Palmyra Grill Brushes feature durable palm bristle pads that easily – and safely – clean even the messiest cooking grids

Height (Inside of trim to inside of trim): 19-13/16 inches

The DVP-FS Ceiling Firestop 5 inch Diameter is easy to purchase and simple to install

Leisure Time Calcium Booster | Hardness Increaser Brand_Endless Pools 1 x DuraVent 58DVA-E90 90°Leisure Time Calcium Booster is a calcium hardness increaser formulated for spas and hot tubs. It raises the calcium hardness level of your spa water into the safe range, protecting against the two problems that low calcium water causes: foaming and equipment corrosion. The fast dissolving formula mixes in quickly with the jets running, and a measured dose moves hardness predictably toward the 150400 ppm target range. Calcium hardness is the most