$6 for a single pole, $11 for double pole austrian made F&G breaker (only type they sell at Baumax), $42 for a 4pole main GFI, $45 for double pole (same manufacturer).
These are known as high quality stuff (ours have lasted for 25 years now and still work perfectly, some newer, cheaper ones failed after 2 years, wouldn't properly reset, just because it has been turned on and off manually a few times.)
