Thetford Replacement Cooker I-Drive Knob Black & Silver $25.00 For spinflo ovens, knob is approx 33mm diameter on top, 40mm at base. Thetford Replacement Cooker I-Drive Knob Black & Silver quantity — OR — Add to cart Categories: PARTS, STOVES-OVENS-GRILLS Description Description For spinflo ovens, knob is approx 33mm diameter on top, 40mm at base. Related products MPK REPLACEMENT DOME C/W HANDLES 280 X 280 WHITE $120.00 Add to cart M5 Anti Vibration Rubber Mounts 15x15mm Shock Damper For Water Pump $28.50 Add to cart Swift Sargent Caravan RV Control Panel EC800CP 2019+ $1,495.00 Add to cart Carbon Monoxide Alarm $60.00 Add to cart