Advantages Simplify your inventory! One heater fits many, many applications! No more re-scheduled repairs � fix that spa on one visit! Increase your customer�s satisfaction! Competitively priced with all replacements! Be prepared- keep two or three on your truck! Features Universal 15� length (others available by request) Universal 4.0kW can replace 4.0 and 4.5kW ratings Adjustable grounding and mounting studs Adjustable thermowell cover Multiple pressure switch ports Stainless steel pressure switch plugs 2�s heater tailpieces with gasket/o-rings