From:
http://www.OilFilterStudy.com/
Cost $4.99 -- Truck Pro
Baldwin Filter:
* ADBV material: Nitrile
* Spring type: coil
* Baseplate hole area: 0.319 sq/in
* Filter area: 413 sq/in; 68 pleats
* Center tube hole area: 2.02 sq/in
* Total Weight: 500 grams
* Filter and endcaps weight: 6 oz
* Average largest pore size: 50 µm
* Smallest pore size: 17 µm
* 30W 70F Oil flow @ 10psi: 9.1 oz per minute
Summary
This filter appears to have better than average filtration capability, better than average oil flow, and excellent construction. It is a mid-priced filter.
Details
Baldwin filters are more difficult to locate than household name brands. However, they can be found by locating a distributor on their website.
Here is the signature baseplate of a Baldwin filter. There are five equally spaced intake holes.
Instead of having a neck for the ADBV to seal against, the Baldwin filter has a separate plastic ring that seals against the canister. The ADBV is large because of the large circle of intake holes.
Like the WIX and Hastings, the Baldwin also uses a spring to hold everything in place and puts pressure on the ADBV to seal it against the canister. The start and end sections of the media are held together by a metal clip instead of adhesive.
Here you can see the dense filter material and 68 pleats along with the metal inside tube with perforations.
Information provided by Baldwin:
6 micron
150 psi working pressure
89.35% average efficiency
391.1 sq. in. of media
Flow rates:
2 gpm @ 3 psid
5 gpm @ 5 psid
9 gpm @10 psid
11.5 gpm @ 15 psid
12 gpm @ 16 psid
