The new, Multioption X2 reservoir from EK is a major step towards new multioption reservoirs. The multioption X2 offers at least twice as much setup possibilities. Manufactured of first class quality 60mm acrylic tube and POM Acetal, sealed with quality EPDM rubber washers. New version has the outer diameter of 60mm (compared to old version which had 50mm). All new features give customer better mounting, easier filling and faster bleeding.

Basic version:
Bottom part gives user 3 options for placing the G1/4 fittings/barbs as inlet or outlet. Top part gives 1 additional option for placing the G1/4 fitting/barb as inlet or outlet. So the basic version has totally 4 options. Unused G1/4 ports are to be plugged with enclosed G1/4 Plugs. Additionally, the reservoir comes with one internal 12mm ID and 16mm OD tube with thread on one end so it can be screwed into threaded ports inside the reservoir (1 × bottom, 1 × top). New Multioption X2 Reservoirs comes with a pair of EK design reservoir holders with adjustable fastening force with enclosed Allen key.

Installation & Mounting

Note
Most important difference:
»RES« series is 50mm in diameter
»RES X2« series is 60 mm in diameter
Due to different available tube diameters, this item is compatible only with EK-MULTIOPTION RES X2 series (NOT »RES«). Furthermore RES X2 accessories are compatible only with RES X2 reservoir series.

Technical data
Installation height:	100mm
Diameter:	60mm
Capacity:	110ml
Thread:	G 1/4
Weight (netto):	0,23 kg
Enclosed:	EK-Multioption X2 Reservoir Basic 1 × Internal 12mm ID 16mm OD tube with thread on one side Pair of EK reservoir holders with mounting screws 2 × G1/4 Plugs 1 × 6mm Allen key for plugs 1 × 2,5mm allen key for reservoir holder

04-27-2011
Reviewer: flatsixdc (22)
I have the previous (Rev.2) version on my other loop, and now this version on my gpu loop. The rev.2 one has a built-in anti-cyclone divider that accepts an anti-cyclone plate, but in my experience the divider itself is sufficient. This new one doesn''t have that, and you can''t can''t add it (you have to go up to the 150). I installed the inner tube so that that the intake comes in the side of the bottom piece, then shoots up out of the tube (reverse of the picture above). The thinking is that this would shoot the bubbles to the top. Then the pump sucks the coolant down through bottom outlet. But in a fast-moving loop, it is basically a bubble machine because the inner tube creates a geyser that blasts the roof of the reservoir. To fix that you have to fill the reservoir completely past the top. To do that, you need something on top that lets the level stay high. I have a short length of tube, with compression fittings on either end, and a fillport. The old version works great with air at the top, so you don''t need that length of tube on top. Not too happy about having that, but it does bleed itself pretty quickly. I haven''t tried the redesigned mounting brackets, since I have it directly on top of my D5 pump top with a short male-to-male adapter. In conclusion, I slightly prefer the previous version (rev.2), but this is still good enough to recommend.

02-25-2011
Reviewer: Steve (12)
This res works like a champ. It has the perfect # of ports. I use the top for the fill port tube coming in from the top of my case. I use the side port coming in from the rad and one bottom port straight down to the pump. That left the remaining port on the bottom for an LED light and it looks really cool. I put the tube inside on the bottom port from the rad and it looks like I''m brewing witches brew in it. Gives a nice indication of coolant flow without dumping tons of bubbles/foam back into the coolant. The brackets for this are nice looking, but the jury is still out on those. I have them tightened up, and it''s holding, but I have this on a vertical mount and I''m not sure, after time, if they''ll hold up. It does look really good though and I''m 100% happy with this res. I drilled a tiny hole in one of the mounting brackets to insert the allen wrench they give you because you know you''re gonna lose that thing. Wish they''d made some sort of holder for it already, but it''s working nice.