Shop Products at ESI Source Solutions › PST-ES-BPHI Butterfly portfolio heater, insulated, 20cm in length, for Easy Spray source controller Image 1 of 2 Image 2 of 2 PST-ES-BPHI Butterfly portfolio heater, insulated, 20cm in length, for Easy Spray source controller $1,875.00 Butterfly portfolio heater, insulated heating surfaces, 20cm in length, for Easy Spray source, uses source power control. Quantity: Add To Cart Added! Butterfly portfolio heater, insulated heating surfaces, 20cm in length, for Easy Spray source, uses source power control. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Pencil Heater 10cm - 25cm. $2,205.00 Mounting Bracket (3D) for the Jailbreak Butterfly Heater $375.00 Butterfly Portfolio Heater $1,765.00 Column Heater Controller $1,875.00 Jailbreak Butterfly Heater for Easy Spray Source 20cm X 4cm for use with the Easy Spray Source Heater Controller $1,875.00