KENDELL - I saw the "SC" on the left one, but the whole shape & contour looks exaclty like My old gal. jugs Rotella & anti-freeze come in. BTW, I absolutely HATE the new Rotella jugs.
Forget which PD it was, maybe #2 or #3, but Travis S. who hosted this spring's PD had some real nice plasma or flame-cut steel weights all powder-coated for sale, little bigger than the MWSC 10# weights but not as big as the jd Skidsteer weights lots of people use. Think they were around 15 to 20#.
RICHARD P. - The safety hitch pin Ken posted will work fine for pulling Your cart but I normally just use a 1/2" dia. bolt 5-6 inches long, drilled at the bottom for a hairpin safety pin so it doesn't fall out. My big tandem axle Prenevost dumpcart has 5/8" dia holes in the hitch clevis so I use a 5/8" bolt in it, I hook it to a short drawbar that bolts to the Cat. O 3-point to sleeve hitch adapter so I can raise & lower the front of the cart with the hydraulics. The drawbar weight even empty is almost too much for Me to lift anymore, the cart weighs 650# empty!