From MPSW website:
Mechanical Products SW, Inc. is dedicated to providing quality products to our customers. We represent only the finest manufacturers in the HVAC industry. Our commitment to our customer service and attention to detail is what sets us apart from our competition. Once you have done business with MPSW, you will appreciate our professional approach to your HVAC engineered equipment needs.
To contact Mechanical Products SW:
Mechanical Products SW, Inc.
2620 E Rose Garden Ln #1
Phoenix, AZ 85050