Dan Estrin

Dan Estrin uses has a PRS CU24 in blue, orange, and camouflage finishes. You can see this guitar in lots of Hoobastank music videos.

According to this article. Dan has used a Gibson SG before.

This article says that Dan has used a Gibson ES-137.

This article says that Dan Estrin has used a Music Man Axis Super Sport Electroc Guitar.

This gear article says that Dan has used a Paul Reed Smith Hollowbody II in his rig.

According to Dan's Mesa Boogie artist page he uses a Mesa Boogie Road King amp head.

Dan Estrin's Mesa Boogie page says he uses a Lone Star amp head.

Dan's Mesa Boogie page says that he uses a 25 watt Mini Rectifier.

In Dan's pedalboard you can see a EVH Flanger pedal.

This article says that Dan has used a Line 6 delay and can be seen his pedalboard.

This gear article says that Dan uses a Line 6 FM4 in his pedalboard and can be seen in this picture.

http://www.uberproaudio.com/who-plays-what/574-hoobastank-dan-estrin-guitar-rig-gear-and-equipment Also explains what he uses, also in the picture you can see the Vibe pedal.

http://www.uberproaudio.com/who-plays-what/574-hoobastank-dan-estrin-guitar-rig-gear-and-equipment

In the image you can see a 4th Gen Whammy,

In the image, can be seen a Boss OD-20 Drive. Since you can hardly see a OD-20 on the top of the pedal.

In the following article states that a Digitech TimeBender was used. Maybe, it was used to create the sustained notes in "The Reason".

The article shows that a Digitech HarmonyMan was used. It was used for most of the Harmony effects by Dan.

in the image can be seen a Micro Amp pedal.

In the article shows the Stereo chorus.