Poolmaster 32020 Concrete & Gunite Pool Maintenance Kit. Poolmaster’s Basic Collection consists of the essential must-have products for customary pool and spa maintenance constructed with durable materials designed to keep your pool sparkling. Arm yourself with the must-have basics to cover all your maintenance needs. Kit includes Flexible Vacuum with mar-proof wheels and weighted body, 17-1/2″ Aluminum-back brush with die-cast handle and Polypropylene bristles, Leaf Skimmer with Aluminum inner frame with mar-proof rim and long-wear net, and for water testing and temperature control, the Basic 5 Test Kit tests for chlorine, bromine, pH, acid demand, and total alkalinity, while the large Pocket thermometer features built-in reservoir to hold water for accurate read outs outside the pool.