The Reverse Circulation Junk Basket is used to retrieve all types of small junk objects in well bores. Such as bit cones, cutting blades and hand tools, etc..
During operation, with the steel ball dropped into the valve seat, fluid flow in a continuous stream to the center of the tool and up through return ports in the upper end of the barrel, all junk is thus carried into the barrel above the junk catcher.

Type	Max. O.D.	Steel Ball O.D	Connection	Hole Size Range	OAL
	(mm/inch)	(mm/inch)	API	(mm/inch)	(mm/inch)
LL146	151(5-15/16)	35(1-3/8)	NC38	155.6~165.1(6-1/8~6-1/2)	1376(54-11/64)
LL200	205(5-5/64)	43(1-11/16)	NC50	212.7~241.3(6-1/8~6-1/2)	1766(69-17/32)
LL257	257(10-1/8)	48(1-57/64)	6-5/8REG	273~295.3(10-3/4~11-5/8)	1770(69-11/16)
LL280	286(11-1/4)	48(1-57/64)	6-5/8REG	298.5~311.2(11-3/4~12-1/4)	1846(72-43/64)
LL381	381(15)	60(2-23/64)	7-5/8REG	406.4~444.5(16~17-1/2)	1780(70-5/64)
When ordering or requesting quotation, if size out of above specification, pls. specify clearly.