The Maxi-Joint® 1015 comes standard with an EPDM tube and cover, for an extra measure of durability and chemical resistance. The flowing arch design of the Maxi-Joint® 1015 virtually eliminates any sediment buildup. The 1015 has exceptional range of movement, shock absorption and vibration dampening capabilities and can compensate for minor offset or misalignment. The integrated flange and standard ANSI bolt drilling makes it simple to install. If you chose the retaining ring option, hot dipped, galvanized retaining rings are the standard.