The following spare parts are available for this model:
201857 - Sigma Gas Valve,
900375 - Lead To Suit Sigma Gas Valve,
M200106-S - Rings To Suit Sigma Gas Valve,
32-508 - Electrode (3 Prong),
DR-230VCBA - Blue Pactrol Control,
DR-RH - Replacement Rayhead,
OBSOLETE - The Black Pactrol & Pektron Controllers are obsolete and not replaceable