Sterilight S36RL uv lamp for S12Q S24Q S12Q-PA, S12Q-PA High Quality UV Lamp made to match OEM Specifications Fits S12Q, S12Q/2, S12Q-Gold, S12Q-PA, and many more systems. Approximate Length is 33.18" This is the highest quality aftermarket replacement s36rl replacement lamp you can buy. This Lamp is manufactured by ExactFit UV, we do not sell Sterilight Branded uv lamps.