WxHxD:
Small (PYHTB1)
External - 305 x 305 x 170mm
Internal - 245 x 225 x 110mm
Internal Capacity: 6 Litres
Medium (PYHTB2)
External - 460 x 305 x 255mm
Internal - 400 x 225 x 195mm
Internal Capacity: 17.5 Litres
Large (PYHTB3)
External - 650 x 380 x 255mm
Internal - 590 x 300 x 195mm
Internal Capacity: 34.5 Litres