Overview Reviews Product Description The collar on the G20M mender is designed for use with interlocking G29C style clamps for maximum holding strength. Greenline Industrial Fitting Catalog New Greenline Industrial Fitting Catalog Product Videos Custom Field Product Reviews Write a Review Write a Review × Greenline 4" Collared Iron Hose Mender G20M-400 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *