THIS IS A PIPE INCREASER WHICH WILL ALLOW YOU TO CONNECT YOUR 4" VITREOUS PIPE TO A LARGER 5 " VITREOUS PIPE.
Flexible Flue Increasing Adapter 4" 100mm Single Stove Pipe to 5" 125mm Liner
Easyspare Rubber Probe Holder for Pellet Stoves for Capsules from 3.8 to 4 mm. 5.6mm High Inert Diameter 3.8mm
Mi-Flues TWPro 125mm MB Single Wall To Twinwall Adaptor ( 5" SW to 5" TW so 7" )
5 inch to 5" Flue Pipe To Flexible Flue Liner Adapter WITH FIX BOLTS
5" inch To 5" Adaptor adaptor with bolts For Flue Pipe to Flexible Flue Liner
LatoYard 2 Pack Ceramic Fiber Seal Haas+Sohn Heat Exchanger Models 4.17, 5.17, 4.19, 5.19, HSP1-2, 12cm x 0.5cm Gasket for Replacement Kit