As of this posting, Brewers Hardware is discounting their entire lineup of CIP Spray Balls and Wort Strainers by 15% for HBF Readers. Use coupon code HBF15 to get the deal. This means that CIP Spray balls start out at $24.65 – threaded model pictured above. Check Brewers Hardware for current availability.
Note from HBF: CIP = Clean in place. CIP Spray Balls are generally used to clean large tanks that cannot be moved for cleaning. Possible homebrew applications include using this for CIP cleaning for larger vessels, adapting for use as part of a keg or carboy cleaning pump or as part of a sparing setup – See: Mark II Keg and Carboy Washer Mod – Adding a Stainless Steel CIP Spray Ball for an example setup using a different CIP mod.
Make sure the components you use are compatible and rated for your intended application. Contact manufacturer with questions about suitability or a specific application. Always read and follow manufacturer directions.