Adhesive Disk Electrode Washer with Tab, 12mm ID x 32mm OD, 100 packElectrode washer. Secures electrodes and sensors in place. ID = center hole diameter, OD = outside diameter.SKU: E402 $10.75 Qty: Add to cart Ship toSelect countryUnited States of AmericaUnited States of AmericaUnited States of America *Other *Shipping MethodNameEstimated DeliveryPriceNo shipping optionsApply Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend