Over the years ESM-B products, also known as “Stumm Boxes” have become the paramount standard for exterior electrical outlet installations in Alberta, B.C. as well as in construction and renovations all across Canada. These original and one of a kind boxes have been installed on all types of structures ranging from single-family homes and garages to many large multi-family and commercial developments. ESM-B boxes are safe, highly cost effective and incredible time savers. PRODUCT SPECIFICATIONS:- Color: Black- Material: UV-Rated Plastic- Paintable: Yes- Dimensions: 5.47L x 3.50W x 1.41D (Inches) 18 In3 Interior Space 4 - 1/2" Trade Size Knockouts (0.675 Inches)- Listing: CSA - Canada & US CertifiedPRODUCT FEATURES:- Fully Assembled- Weatherproof / Raintight- Horizontal or Vertical- Paintable- UV Resistant- Ground Strip Included- Universal Style