Cutler Hammer GFTCB220 20 Amp 2 Pole GFCI Circuit Breaker Plug-In 12...oes Not Fit In A Cutler Hammer Ch Series Panel) Replaces The GFCB220 : Amazon.co.uk: DIY & Tools
General Electric THQL1120DF 20 Amp GFCI/AFCI Single Pole Dual Function Circuit Breaker 10kA 120 Volt AC
Square D QO 20-amp 1-Pole Gfci Circuit Breaker in the Circuit Breakers department at Lowes.com
electrical - GFCI with 2x 20 amp 1 pole breakers - Home Improvement Stack Exchange
Square D 20 Amp Bolt-On Circuit Breaker, 3 Pole - QOB320GFI