Guaranteed For Life… Not One Has Ever Failed!
Blue Wave ultrasonic cleaners are the best built in the industry and feature a warranty that is by far the best in the industry.
BLUE WAVE ULTRASONICS warrants its products, including accessories, as follows:
1) TRANSDUCER/ DIAPHRAGM
AND TANK:
When powered by a Blue Wave Generator and using an aqueous solution known not to attack 304 stainless steel, Blue Wave warrants to repair or replace at no charge for labor or materials as 
follows:
The silver-brazed transducer/diaphragm is guaranteed for the lifetime of the product not to fail, deteriorate, wear through, burn out or suffer a bond failure to the braze.
The tank is guaranteed not to fail or wear through for a period of twenty (20) years.
2) GENERATOR: If this product is determined to be defective Blue Wave will supply, at no charge, new or rebuilt replacement parts in exchange for defective parts for a period of two (2) years. After the parts warranty period, you must pay for all parts charges. In addition, for a period of one (1) year from the date of purchase, Blue Wave will repair the Product at no charge for labor. After the labor warranty period, you must pay for all labor charges.
3) ALL OTHER COMPONENTS, ACCESSORIES AND INSTALLED OPTIONS: For a period of one (1) year from the date of purchase, if this product is determined to be defective, Blue Wave will repair the Product at no charge for labor or parts. After the Warranty Period, you must pay for all labor and parts charges.
To receive warranty service, telephone a Blue Wave customer service representative, tell them your problem, and they will arrange a quick satisfying response to your needs. No hassle, no jumping through hoops. We even register your warranty for you.
Blue Wave Warranty document in PDF format.