These Heaters were designed to be used with caswell plating kits, each heater fits onto the side of the tank with provided clip, please only use ph-2000 models when going into etching and degreesing tanks, as for sealer tank you will need to reach 200F, you may need to double up to have two heaters to reach that desired temperature if using in 20 gallon tank.  As always shipping is free to US customers  Heaters ship USPS and will be received in 1-3 business days after they are shipped. Enter code: caswell - at checkout for discount on orders of 2 or more heaters

Thank You- Management