Dolphin 6-Lane Stopwatch System - 3 Watches Per Lane horsepower_10 HP The Linak brand batteries are

The Linak brand batteries are identifiable by the metal tabs on the bottom of the battery

they are totally noncorrosive and nonconductive

This Stenner chemical pump #100FL5A3SUAA provides reliable chemical feeding for your swimming pool

Two (2) Stainless Steel lock washers

providing just the right amount of bacteria and algae-fighting elements to keep your pool perfectly clean and fresh

Dolphin 6-Lane Stopwatch System - 3 Watches Per Lane horsepower_10 HP The Linak brand batteries areThis is a Dolphin Wireless 6 Lane Stopwatch System with 3 Watches Per Lane. The Dolphin System provides wireless swimming stopwatch style timing for swimming competitions. Each Dolphin system includes the specified number of stopwatches, a base unit, starter unit, and Dolphin software. It significantly reduces the amount of effort required to run a meet and manage data. By transferring all timing data wirelessly, the system has improved accuracy