Advantages Simplify your inventory! One heater fits many applications! No more re-scheduled repairs � fix the spa in one visit! Increase your customer�s satisfaction! Competitively priced with all replacements! Be prepared- keep two or three on your truck! Features Universal 11� length 4.0 & 5.5 kW low flow heater options Multiple tailpiece options to fit your original plumbing Adjustable mounting feet for multiple configurations Reversible heater enclosure with cord reliefs