Your Shopping Cart Item Your Options Quantity Price The Marine Guardian Photoelectric Infrared Sensor Kit The Marine Guardian Photoelectric Infrared Sensor Kit quantity $595.00 × Thetford AquaMax® Holding Tank Treatment - 32oz - Spring Shower Scent Thetford AquaMax® Holding Tank Treatment - 32oz - Spring Shower Scent quantity $12.01 × The Marine Guardian Flush Mount Magnet Sensor The Marine Guardian Flush Mount Magnet Sensor quantity $25.00 × Coupon: Apply coupon Update cart Continue Shopping Cart totals Subtotal $632.01 Sales Tax $37.92 Total $669.93 Proceed to checkout