this particular model is a pretty good one. Here is cut and paste.
Tufline's "TH" Series tandem discs offer quality and strength at affordable pricing. This combination makes Tufline number one with under 55 horsepower discs in today's market.
The "TH" Series are available in 6'4", 6'8", or 8' cutting widths with blade spacing options of 7 1/2", for seed-bed work, or 9" for cutting with light ground cover. Heat treated 18", 20" or 22" notched disc blades are standard with solid blades available as an option. Adjustable blade scrapers are also available for heavy soils or stubble buildup when needed.
Whether garden preparation, vineyard discing, or game plot ground work is needed, put a Tufline to work for you!
FRAME: 3" Square steel tubing with lever adjust gang cutting angles. Category 1-3 Point hitch. Fixed frame.
GANGS: 1 1/8" Square steel axles. 7 1/2", 9" or combination blade spacing. 18" or 20" or 22" notched blades. Sealed ball bearings mounted in pillow block or flange housing.
OPTIONS: Adjustable blade scrapers. Plain Disc Blades. Screw adjustable control.
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SERIES TH - MODELS AVAILABLE
MODEL BLADES SPACING WIDTH OF CUT WEIGHT
TH72020 20-20" 7½" 6' 8" 948#
Anyway I think this has the flange housing and not pillow block and im not sure which one is better but it also is a combination one with 7-1/2" and 9" spacing with notched on front and solid on back and has the adjustable blade scraper kit added on. It list for $1650 and $350 extra for the scrapers so Its a $2000 rig he is selling for $1450. It will weigh in at 1000 lbs. Its a pretty tough one they have 3 series that are lighter and only one heavier. I guess it dont get much better for a 3 pt. hitch model. Oh yeah its 6' 8" and not 6' 4" so i think the width will do.
Mike