Shirts On Tap in Grantville is a San Diego screen-printing production shop on Alvarado Canyon Road, printing custom-designed apparel and branded merchandise for craft breweries locally and nationwide. Co-founders Dave Gostenhofer, a Marine veteran, and Alec Johnson launched the operation in 2013 out of a garage with secondhand press equipment, building it into a seven-employee production facility at the current 92120 location. The core output is brewery-branded T-shirts — each design developed in collaboration with the featured brewery, printed on-site in limited runs, and shipped directly to subscribers through a monthly box program covering San Diego, Denver, Portland, and Seattle markets. The same screen-printing presses produce custom sticker runs, promotional goods, and bulk branded apparel for restaurants and marketing agencies, the type of merchandise-program work that complements the brand-strategy services at Alta Nova Marketing Solutions on the Grantville corridor. Subscribers choose from five design options each month and customize fit across six cotton styles including tank tops, V-necks, and long-sleeve cuts — per-order customization that requires in-house production rather than contract printing. Direct wholesale orders for taproom retail stock run through the same facility, with shirts printed, folded to retail spec, and poly-bagged for shelf display. Graphic design and apparel decoration operate under a separate production workflow from the paper-print output at ECG Graphics & Printing down Alvarado Canyon, but both serve the same small-business marketing pipeline in Grantville. Each screen is hand-burned from high-resolution film positives, with registration set manually for multi-color pulls averaging four to six ink passes per design on automatic and manual carousel presses.